Hi Maxime,

On 9/3/20 5:00 PM, Maxime Ripard wrote:

Hi everyone,

Here's a (pretty long) series to introduce support in the VC4 DRM driver
for the display pipeline found in the BCM2711 (and thus the RaspberryPi 4).

The main differences are that there's two HDMI controllers and that there's
more pixelvalve now. Those pixelvalve come with a mux in the HVS that still
have only 3 FIFOs. Both of those differences are breaking a bunch of
expectations in the driver, so we first need a good bunch of cleanup and
reworks to introduce support for the new controllers.

Similarly, the HDMI controller has all its registers shuffled and split in
multiple controllers now, so we need a bunch of changes to support this as
well.

Only the HDMI support is enabled for now (even though the DPI and DSI
outputs have been tested too).

Let me know if you have any comments
Maxime

Cc: bcm-kernel-feedback-list@broadcom.com
Cc: devicetree@vger.kernel.org
Cc: Kamal Dasu <redacted>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Stephen Boyd <sboyd@kernel.org>

Changes from v4:
   - Rebased on top of next-20200828
   - Collected the various tags
   - Fixed some issues with 4k support and dual output (thanks Hoegeun!)

Thanks for your v5 patchset.

I tested all patches based on the next-20200812.

Everything else is fine, but the dual hdmi modetest doesn't work well in my
environment...

In my environment, dsi is not connected, I have seen your answer[1].

Do you have any other settings? For example in config.txt.


[1] https://lkml.org/lkml/2020/9/2/566

   - Fixed typos in commit logs (thanks Dave!)
   - Split the csc setup hook into its own patch again
   - Added the CEC clock to the DT binding
   - Fixed the DT binding example
   - Reduced the number of calls to of_device_is_compatible in vc4_kms_load
   - Added back the check for the state commit in our commit hook

Best regards,

Hoegeun


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